The coding-agent conversation sharpened into a two-horse race. Altman's framing — that Codex was a "kamikaze mission" to catch Claude Code, and that most top coders he knows have switched — set the tone, but the useful evidence came from people actually running both all day.
Peter Steinberger praised Sol for parallel QA, while others flagged Sol burning through quota. On the other side, a Claude Code vs Agent Zero build-off on Opus 5 and complaints about Claude Code's five-hour limit kept the pressure on, and Codex's own compaction drew gripes.